A suction dredge bucket

Abstract

The utility model relates to the field of water conservancy project and environmental protection engineering, concretely relates to a suction dredging bucket, the suction dredging bucket takes the shell welded with high strength wear -resisting steel sheet as the main body, and the bottom opening is equipped with the arched grating bar of vault downwardly inclined, and the top suction mouth is connected with centrifugal pump. The internal reamer is driven by servo motor to cut the soil into suspension slurry, and the tail roller realizes free rotation. The roller of the application can make the suction dredging bucket pass over small uneven places more easily, reduce the blockage and severe impact load, and the friction mode with the ground is rolling friction, which can greatly reduce the friction and wear. At the same time, the roller can provide certain buoyancy, which can partially offset its own weight and the downward pressure applied by the equipment, reduce the contact pressure of the roller on the riverbed, further reduce the rolling resistance, and reduce the depth of the roller sinking into the soft mud, so that the roller can more smoothly fit the terrain and reduce the risk of blockage.

Description

Technical Field

[0001] This utility model relates to the fields of water conservancy engineering and environmental protection engineering, and specifically to a mud suction bucket. Background Technology

[0002] In water conservancy and environmental protection projects, dredging of waterways such as rivers, lakes, and ports is crucial. Dredging operations can effectively improve navigation conditions, enhance water quality, and protect the ecological environment. Currently, existing dredging buckets on the market have many problems, seriously affecting the efficiency and quality of dredging operations.

[0003] Furthermore, existing suction buckets use a single piece of steel plate as their rear baffle during operation. Located behind the suction head, the baffle traps the excavated mud inside the suction head housing and in front of it, ensuring the mud is effectively guided to the suction port. However, this type of baffle has significant drawbacks: riverbed debris creates considerable resistance; the baffle experiences significant sliding friction with silt, gravel, and even rocks as it slides across the riverbed; and the steel plate wears out quickly, requiring frequent replacement. Utility Model Content

[0004] In view of the above, the purpose of this utility model is to provide a mud suction bucket to address the problems of the prior art.

[0005] This application discloses a suction bucket, which includes a shell, grid bars, suction port, centrifugal pump, cutter head, servo motor, and roller.

[0006] The outer shell is the main structure of the suction bucket, welded from steel plates, and has a downward-facing opening. Parallel bars are installed along the opening to block large rocks, driftwood, debris, and other foreign objects that may clog or damage the suction pump and pipes. The bars are arched, protruding downwards; this arched shape converts the impact force from foreign objects into dispersed stress along the arch surface, thus reducing impact on the bars and extending their service life.

[0007] A suction port is located at the center of the top of the casing, and the suction port is connected to a centrifugal pump. The vacuum suction generated by the centrifugal pump can draw the slurry from the suction port into the subsequent pipeline.

[0008] Inside the casing is a reamer, which is driven by a servo motor to cut and break the mud at the bottom of the water, turning it into a suspended slurry.

[0009] The rear of the outer casing features a hollow roller that can rotate. Its cylindrical shape allows it to roll over smaller obstacles. Compared to rigid baffles that need to plow over obstacles, the roller can more easily traverse small uneven areas, reducing jamming and severe impact loads. Furthermore, the rolling friction with the ground significantly reduces friction and wear. Simultaneously, the roller provides buoyancy, partially offsetting its own weight and the downward pressure applied by the equipment, reducing the contact pressure between the roller and the riverbed, further reducing rolling resistance. This also minimizes the depth to which the roller sinks into soft mud, allowing it to more smoothly conform to the terrain and reducing the risk of jamming. Attached Figure Description

[0010] Figure 1 , Figure 2 These are schematic diagrams of the structure from different perspectives in this application;

[0011] Figure 3 This is a schematic diagram of the internal structure of this application;

[0012] Figure 4 This is a schematic diagram showing the installation status of this application on a ship;

[0013] Reference numerals: 1. Housing; 2. Grid; 3. Roller; 4. Centrifugal pump; 5. Reamer; 6. Servo motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Reference Figures 1 to 4 The present invention provides a mud suction bucket, which includes a shell 1, grid bars 2, suction port, centrifugal pump 4, cutter 5, servo motor 6, and roller 3.

[0016] Outer shell 1: As the main load-bearing structure of the suction bucket, outer shell 1 is welded from high-strength wear-resistant steel plate and has a downward opening to provide working space for suction operations.

[0017] Grille 2: Grille 2 is installed parallel to the opening direction at the opening position of the outer shell 1. Grille 2 adopts an arched structure that protrudes obliquely downwards. The apex of this arched structure faces obliquely downwards, forming a certain angle with the vertical direction, such as 30°-60°. This unique arched design allows the impact force when a foreign object hits grille 2 to be dispersed into stress in multiple directions along the arch surface, greatly reducing the impact force on grille 2. Compared with the traditional straight grille 2, the impact resistance is greatly improved.

[0018] Suction port and centrifugal pump 4: A suction port is provided at the center of the top of the outer casing 1, and the suction port is connected to the centrifugal pump 4 through a pipe. When the centrifugal pump 4 is working, it generates a vacuum suction force to draw the suspended mud inside the outer casing 1, which has been broken up by the reamer 5, into the suction port and transport it to the subsequent mud treatment equipment.

[0019] Reamer 5 and servo motor 6: A reamer 5 is installed inside the housing 1. The reamer 5 is connected to the output shaft of the servo motor 6 through a rotating shaft. The servo motor 6 drives the reamer 5 to rotate, thereby cutting and crushing the mud at the bottom of the water, turning it into a suspended mud suitable for inhalation.

[0020] Roller 3: A hollow cylindrical roller 3 is provided at the tail of the outer shell 1, which can rotate freely.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suction dredging bucket, comprising a housing (1) provided with a downward opening, a suction opening being provided in the center of the top of the housing (1), a centrifugal pump (4) being connected to the suction opening, a reamer (5) being arranged in the housing (1), a servo motor (6) being provided on the housing (1) for driving the reamer (5); characterized in that: The tail of the shell (1) is provided with a rotatable roller (3).

2. A suction dredge bucket according to claim 1, characterized in that: The roller (3) is hollow.

3. A suction dredge bucket according to claim 1 wherein: The opening is provided with a plurality of grid bars (2) arranged along the opening.

4. A suction dredge bucket according to claim 3, wherein: The grid bar is in the shape of an arch structure protruding downwardly.

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